Rose plant `Ausbreak`

ABSTRACT

A shrub rose variety having paler colored flowers than parents, hang taller and more sturdy than the variety Tamora, with flowers flatter and more quartered than parents, and with highly scented flowers.

The present invention relates to a new and distinct variety of shrubrose plant of the Rosa hybrida class which was originated by me bycrossing the variety Graham Thomas, with the variety Tamora.

The primary objective of this breeding was to produce a new rose varietyhaving yellow, quartered, scented flowers on a bushy plant whichrepeatedly flowers. The objective was substantially achieved along withother desirable improvements as evidenced by the following uniquecombination of characteristics which are outstanding in the new varietyand which distinguish it from its parents, as well as from all othervarieties of which I an aware:

1. Paler colored flowers than parents;

2. Taller and more sturdy than Tamora;

3. Flowers flatter and more quartered than parents; and

4. Highly scented.

Asexual reproduction of this new variety by budding, as performed atAlbrighton, Wolverhampton, England, shows that the foregoingcharacteristics and distinctions come true to form and are establishedand transmitted through succeeding propagations.

The accompanying illustration shows typical specimens of the vegetativegrowth and flowers of this new variety in different stages ofdevelopment, depicted in color as nearly true as it is reasonablypossible to make the same in a color illustration of this character.

The following is a detailed description of my new rose cultivar withcolor descriptions using terminology in accordance with the MethuenHandbook of Colour, except where ordinary dictionary significance ofcolor is indicated.

Parentage:

Seed parent.--Graham Thomas.

Pollen parent.--Tamora.

Classification:

Botanical.--Rosa hybrida.

Commercial.--Shrub.

FLOWER

Observations made from specimens grown in a garden environment inAlbrighton, Wolverhampton, England, in August, 1991.

Blooming habit: Recurrent.

Bud:

Size.--About 1" long when the petals start to unfurl.

Form.--The bud form is medium, globular with long cuspidate apex.

Color.--When sepals first divide, the bud color is brownish red 8C6.When half blown, the upper and lower sides of the petals are pale yellow3A3, yellow 3A5 at base.

Sepals.--Color: Greyish green 29D to E7. Surface texture: Leathery,slightly grainy. There are three normally appendaged sepals. There aretwo unappendaged sepals with hairy edges.

Receptacle.--Color: Deep green 9D8. Shape: Goblet shaped. Size: Medium,small, about 3/8"×1/4". Surface: Smooth.

Peduncle.--Length: Medium, averaging about 13/4-23/4". Surface:Glandular. Color: Light green, bronzy, 30D7 and brownish violet blush11D7. Strength: Erect.

Bloom:

Size.--Medium. Average open size is 21/2-31/4".

Borne.--Singly and several together in clusters of up to 6 flowersirregular shape.

Stems.--Average length is from 24 to 30 inches.

Form.--When first open: Cupped. Permanence: Flattens, outer petal edgescurl slightly.

Petalage.--Number of petals under normal conditions: 70 to 100.

Color.--The upper side of the petals is yellow 2A5 to 4A3. The reverseside of the petals is yellow 2A5 to 4A3. The color of the base of thepetals is yellow 3A6. The major color on the upper side is yellow 4A3.

Variegations.--None.

Discoloration.--The general tonality at the end of the first day: Veryslightly faded. At the end of the third day, pink/white 7A2 to paleyellow 3A3.

Fragrance.--Strong and musky.

Petals:

Texture.--Sheeny, thick.

Shape.--Round, heart-shaped.

Form.--Cupped.

Arrangement.--Quartered. Inner petals caught into calyx to form abutton, with few petaloids in the center.

Persistence.--Medium. Petals hang on and dry.

Lastingness.--On the plant: Long, about 7 to 10 days. As a cut flower:About 4 to 7 days.

Reproductive parts:

Anthers.--Size: Medium. Quantity: Few (5-35). Color: Yellow.Arrangement: Tucked in calyx or partly so.

Filaments.--Color: Yellow.

Pollen.--Color: Gold yellow.

Styles.--Color: Pale green 30A3.

Stigmas.--Color: Yellow, with cerise 12C8 streak at base.

Form: Shrub.

Growth: Medium, branching.

Height: 42 inches.

Foliage: Number of leaflets on normal mid-stem leaves: 5.

Size.--Medium, about 13/4" long.

Quantity.--Normal.

Color.--New foliage: Deep green 29E8. Old foliage: Dark green 28F7.

Leaflets:

Shape.--Base is round, oval. Tip is pointed.

Texture.--Upper side: Leathery.

Edge.--Serrated.

Serration.--Single, small.

Petiole rachis.--Color: Green, reddish 30E8 with violet brown 11D7tinge.

Petiole underside.--With prickles, 1 to 3 per internode.

Stipules.--Medium, serrated, about 3/4" long and glandular.

Disease resistance.--Resistant to mildew and blackspot under normalgrowing conditions at Albrighton, Wolverhampton, England.

Wood:

New wood.--Color: Parrot green 30E8. Bark: Smooth.

Old wood.--Color: Green, deep green 29E8. Bark: Smooth.

Prickles:

Quantity.--On main canes from base: Ordinary. On laterals from maincanes: Ordinary to few.

Form.--Medium, straight.

Color when young.--Red, brown, rosewood 9D5.

Position.--Evenly spaced along stem.

Small Prickles:

Quantity.--On main stalks: None. On laterals: None.

I claim:
 1. A new and distinct variety of shrub rose plant of the Rosahybrida class, substantially as herein shown and described,characterized particularly as to novelty by the unique combination ofits having paler colored flowers than its parents, its being taller andmore sturdy than the variety Tamora, flowers flatter and more quarteredthan parents, and highly scented flowers.